1. Department of Earth System Science, Stanford University, Stanford 94305, California, United States
2. Civil Engineering and Applied Mechanics, McGill University, Montreal H3A 0G4, Quebec, Canada
3. Support Resources, Inc., Malibu 90265, California, United States
4. Air Quality Research Center, University of California, Davis, Davis 95616, United States
5. Energy Technology Area, Lawrence Berkeley National Laboratory, Berkeley 94720, California, United States
6. Woods Institute for the Environment and Precourt Institute for Energy, Stanford University, Stanford 94305, California, United States